I've been debating this a lot lately. Thinking hard on whether I should keep my T2i or sell it and add to get a 7D. I truly love the use of ML, but I also love the ruggedness of the 7D and how much more professional-oriented it is. My question is: At this time, is it really worth it to "upgrade" to the 7D? Mainly looking for opinions from people who have maybe made the switch or own both, etc. Any advice and/or recommendations are appreciated.